energy of configuration Problem 4 (5 pts): A sphere of radius Ro carries a charge density...
A sphere of radius R carries a volume charge density ρ(r) = kr, where k is a constant and r is in spherical coordinates. Calculate the energy of this configuration, check the answer by calculating it in four ways.
4) A nonconducting sphere of radius Ro and total charge Q, contains a non-uniform volume charge density p -A/r (where A is a constant) throughout the she (a) Find the constant A in terms of Ro, k and Q (b) Find the electric field for r < Ro and r Ro.
3rd Question Consider a solid insulating sphere of radius b with nonuniform charge density ρ-ar, where a is a constant. Find the charge contained within the radius r< bas in the figure. The volume element dV for a spherical shell of radius r and thickness dr is equal to 4 π r2 dr.
Volume Charge Density 4 Part A A solid sphere of radius R carries volume charge density ρ-PoeriR, where A) is a constant and r is the distance from the center. Find an expression for the electric field strength at the sphere's surface. Your expression should be in terms of the given variables and any other known variables such as the dielectric constant, єо. co is typed as "epsilono" without the quotations. po is typed as "rhoo" without the quotations. D...
Question A1 (12 marks] A sphere with radius R carries a charge density that is proportional to the square of the distance from the origin, i.e. p = kr2 for some constant k. (a) [3 marks] Calculate k if the total charge on the sphere is Q. (Hint: dt = r2 sin(O) dr do do ) (b) [3 marks) Write down Gauss's law in integral form. In which situations can it be used to directly calculate the electric field of...
A solid sphere, made of an insulating material, has a volume charge density of ρ = a/r What is the electric field within the sphere as a function of the radius r? Note: The volume element dV for a spherical shell of radius r and thickness dr is equal to 4πr2dr. (Use the following as necessary: a, r, and ε0.), where r is the radius from the center of the sphere, a is constant, and a > 0. magnitude E= (b)...
A sphere of radius R has total charge Q. The volume charge density (C/m3) within the sphere is ρ(r)=C/r2, where C is a constant to be determined. The charge within a small volume dV is dq=ρdV. The integral of ρdV over the entire volume of the sphere is the total charge Q. Use this fact to determine the constant C in terms of Q and R. Hint: Let dV be a spherical shell of radius r and thickness dr. What...
Problem 4 (5 pts): . The sphere is A sphere of charge of radius a centered at the origin has volume charge density PoPo1 surrounded by another spherical shell with inner radius Ri and outer radius Ro. Ri>a. Determine E everywhere in space. -
A solid insulating sphere of radius R has a non-uniform charge density ρ = Ar2 , where A is a constant and r is measured from the center of the sphere. a) Show that the electric field outside the sphere (r > R) is E = AR5 /(5εor 2 ). b) Show that the electric field inside the sphere (r < R) is E = AR3 /(5εo). Hint: The total charge Q on the sphere is found by integrating ρ...
3. (5 pts) Electrostatic force. A sphere of radius R which carries a uniform volume charge density ρυ is cut in half as shown in the following figure. Find the force that the southern hemisphere exerts on the northern hemisphere and express it in terms of the total charge of the sphere q. 3. (5 pts) Electrostatic force. A sphere of radius R which carries a uniform volume charge density ρυ is cut in half as shown in the following...